TY  - BOOK
AU  - Indian Standards Institution[ISI]
TI  - IS:9901-(Pt.3)-1981. Indian standard measurements of sound insulation in buildings and building elements. Pt.3 : laboratory measurements of airborne sound insulation of building elements
U1  - IS CODE 
PY  - 1995///
CY  - New Delhi
PB  - Indian Standards Institution
ER  -